Dell PowerVault 221S Optimizing Dell SCSI Solutions - Page 5

A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 the server/storage solution and will determine what RAID configuration will be the most optimal for the application. Table 2-2 outlines the recommended RAID solution based on the usage of the server. • Table 2-2: Application Vs RAID configurations Application RAID Level Concatenated 0 1 10 5 50 Email Database Web On-line transaction File Archival File - User File stores Streaming Media Recommended Not Recommended Possible General RAID Configuration Guidelines RAID 0 RAID 0 is generally not a recommended solution due to lack of redundancy and data protection. However, it may be utilized in situations where these are not required and maximum storage capacity and performances are essential. RAID 1 A RAID 1 solution, while not ideal for most servers, could be utilized for small workgroup servers or servers with low storage capacity and growth requirements. Any servers beyond a small workgroup server are likely to need more storage and consequently, a more efficient RAID solution. RAID 10 RAID 10 has good I/O performance, excellent availability and redundancy. The biggest drawback is the higher relative cost for significantly lower storage capacity. This RAID configuration should be used in situations where the maximum availability, redundancy and performance are the priority considerations. PAGE 5 11/17/2005